Word Study
intenable
CIDE DICTIONARY
intenable, a. [Pref. in- not + tenable: cf. F. intenable.].
Incapable of being held; untenable; not defensible; as, an intenable opinion; an intenable fortress. Bp. Warburton. [1913 Webster]
For further exploring for "intenable" in Webster Dictionary Online